Apparatus for straining liquids.



No. 870,000. PATBNTED NOV. 5 1907.

E. (LAFAHRENHEIM. APPARATUS FOR STRAINING LIQUIGDS.

APPLICATION FILED MAR.19,`1907.

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PATENTBD Nov. 5, 1907.

E. 0. FAHRENHEIM. APPARATUS -POR STRAINING LIQUIDS.

APPLICATION FILED MAR. 19, 1907. t

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PATENT OFFICE.

EMIL C. FAHRENIIEIM, OF HAMBURG, GERMANY.

APPARATUS non STRAINING LIa'JIDs.

Specification of Letters Patent.

Patented Nov. .5, 1907.

Application filed March 19, 1907. Serial No, 363.229.

To all whom it may concern:

Be it known that I, EMIL C. FAHRENHEIM, a citizen ol' the Empire of Germany, and a resident of Hamburg, Germany, have invented certain new and useful Improvements in Apparatus for Straining Liquids, of which the following is a specification.

This invention has reference to improvements in apparatus for straining liquids particularly potable liquids such as heel' tea, soups and vegetables.

It is the special object of my invention to produce a strainer through which large quantities of liquid may be passed quickly while the solid and coarse particles are separated l'rom the liquid and retained within the strainer. The novel strainer, therefore7 is well adapted for use in hotels and restaurants where time is a great object. In addition to these main objects it has been sought to produce a substantial apparatus, but ol' simple construction, to avoid repairs and reduce the cost of production to a possible minimum.

The invention further consists in the construction and arrangement of the detail parts, it is illustrated in the accompanying drawings in which:

Figure l represents infront elevation an apparatus for straining liquids which embodies in desirable form the present improvements. Fig. 2 is a top plan view of the device. Fig. 3 is a vertical central section of same on line 3 3 of Fig. 2. Fig. 4 is a cross section on line 4 4 of Fig. 3, and Fig. 5 is a side eleva-tion at right angles to Fig. l.

Similar characters of reference denote like parts in all the figures.

In the drawings ais an iron vessel preferably galvanized. This vessel is cylindrical in form, open at the Atop and has a removable bottom b. At the top a ring c is riveted to the cylindrical vessel a. This ring is flush at the top with the top surface of the cylindrical vessel a and forms two neighboring [ianges d, e on its front central portion which act as a support for the screw f This screw is mov-ably but permanently attached to said support so that it is never mislaid or lost. A like support and screw g are provided at the rear central portion of the ring c. A cross bar h rests on the top of the cylindrical vessel a and the ring c, said bar is held in position by the two screws f and g.

A second ring t' is riveted to the cylindrical vessel at the bottom. Above this ringl there are three screw supports k secured to the outer walls of the cylindrical vessel which hold each a screw l. The removable bottom has a rim on its periphery which lits the ring i on .the bottom of the vessel a. Three pairs of neighboring anges j are formed on the rim which are supports for the three screws Zabove referred to. A sieve m [its the bottom surface of the ring t'. It also fits within the rim of the detachable bottom. The sieve and bottom are secured to the vessel by means of the three screws Z which pass through the screw supporting flanges j.

The bottom b is formed by several radial cross bars b1 and a large number of annular ribs b2 between which there is suflicient space to allow the liquid to drain off.

The apparatus is preferably furnished with several sieves of various grades of neness according to lthe liquid to be strained. Each sieve has a knob m1 in the center which is hollowed out forming a space which is adapted to receivethe bottom end of the shaft a which forms an inverted cone. The shaft n extends vertically up and passes through the enlarged central portion hl of the bar h. Here the shaft n is somewhat reduced in diameter and further up it forms a screw o of the shape shown on Figs. l and 3. Near the bottom end of the shaft n there are, preferably integral therewith, a plurality of radial bars nl. are shown on the drawings. The lower portion of each bar is hollowed out forming a longitudinal channel in which a strip of Wood n2 is secured by means of screws n3.

The top ring c forms on the inner side, which is shown to the left in Figs. l, 2, 3, two curved hooks p. A clamping device g, having a strong pin q1, is adapted to be loosely hinged in the hooks p. This device need not be described in detail; it is there for the purpose of screwing the apparatus to a kitchen table or the like. To the upper part of this device a lever 1^ is movably attached. A ring r1 is formed in said lever, its center is in line with the shaft n and screw o. This ring supports a nut s through which the screw o passes. Said nut s is loosely mounted on a short pin, permitting thus the lever r to be moved up and down on the screw o. y

The apparatus is operated in substantially the following manner: When the apparatus has been screwed to a kitchen table or a block on the wall or the like, the lever 1' is raised and removed from the screw o to ease the pouring in of the liquid to be strained. When the cylindrical vessel is filled, the lever r is again brought in connection with the screw n by means of the nut s and the lever is now gently moved up and down by the hand. By virtue of the screw o and nut s the shaft fn. is rotated around its anis and with it the radial bars nl which now perform a whirling motion, agitating the liquid and at the same time the sieve is cleaned from the solid and coarse particles by the wooden bars n2. Hereby a quick passage of the liquid is effected. Care should be taken not to introduce any bones into the apparatus because these might damage the sieve.

A handle t may be provided on the side shown on the right in Figs. l, 2, 3. This handle is held with the left hand during the operation of the device while the lever r is moved up and down with the right hand.

Having thus described my invention, I claim as new and desire to secure by Letters Patent;-

1. An apparatus for straining quantities of liquids comprising a cylindrical vessel open at both ends, a removable Four of such bars' bottom with open spaces, an exchangeable sieve, having centrally a knob or bearing, located at the bottom end of the vessel and on the removable bottomy a detachable, horizontal cross bar on the top 0f the vessel, a whirling device consisting of a vertical shaft rotating in the bearing of the sieve having a reduced top portion which moves in the central part of the horizontal cross bar forming a vertical screw at the top and havingl .near its bottom end radial bars with wooden bottom surfaces, a clamping device adapted to secure the apparatus so that it projects from its support, and a lever movably con nected to the top portion of the clamping device, a loose ,nut secured in said lever and-0n the vertical screw of the shaft, so arranged that by moving' up and down the lever the whirling device is actuated whereby the top surface of the'lsieve is cleaned and the'liquid agitated thus effecting quick straining of same.

2, In an apparatus of the type described a whirling device consistingr of a vertical shaft with pointed bottom end, a support for the lower end of said vertical shaft, having a reduced upper portion thereon forming a vertical screw at the top, a plurality of radial bars near the bottom end of the shaft and having Wooden bottom surfaces, a horizontal lever forming a ring, a nut loosely mounted in said ring, engaging the vertical screw, so arranged that by moving the lever up and down the whirlingdevice is actuated and means for supporting said whirling device and said horizontal lever.

Signed at New York, N. Y. this 18th day of March 1907.

EMIL C. FAHRHEIM.

Witnesses `LUDWIG K. BHM,

LoUIsn M. BOERLAGE. e@ 

